The Orioles cleared space on their 40-man roster by outrighting four pitchers — right-handers Ryan Eades, Luis Ortiz and Tayler Scott and left-hander Josh Rogers to Triple-A Norfolk.
They also claimed infielder Pat Valaika on waivers from Colorado.
Eades, who was claimed on waivers from Minnesota on August 14, was 0-1 with a 3.52 ERA in six games.
Ortiz came from Milwaukee along with Jonathan Villar in the Jonathan Schoop deal on July 31, 2018. A former first-round draft choice of the Texas Rangers in 2014, Ortiz allowed four runs in 3 1/3 innings in his only appearance against Boston on June 14. He spent much of the season on Norfolk’s injured list.
Scott, the first South African to pitch in the majors, was claimed on waivers from Seattle on June 25. He had an 18.69 ERA in eight games and allowed 18 runs on 20 hits in 8 2/3 innings.
Rogers underwent Tommy John surgery in July and was on the 60-day injured list. He was 0-1 with an 8.79 ERA in five games for the Orioles.
The Orioles need room on the 40-man to add prospects such as Ryan Mountcastle and must transfer Alex Cobb, who had hip and knee surgery from the 60-day IL.
Mark Trumbo, who becomes a free agent after the World Series, will give the team another roster spot.
Valaika, who plays all four infield positions and left field, has hit .214 in the last four seasons with Colorado. A right-handed hitter, the 27-year-old Valaika hit .258 with 10 home runs and 40 RBIs in 2017. In 2019, Valaika hit .190 in 40 games.